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http://hdl.handle.net/10261/121053
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dc.contributor.author | Gómez-Cortés, Pilar | - |
dc.contributor.author | Tyburczy, C | - |
dc.contributor.author | Brenna, J. T. | - |
dc.contributor.author | Juárez, Manuela | - |
dc.contributor.author | Fuente, Miguel A. de la | - |
dc.date.accessioned | 2015-08-10T09:14:20Z | - |
dc.date.available | 2015-08-10T09:14:20Z | - |
dc.date.issued | 2009 | - |
dc.identifier | doi: 10.1194/jlr.M800662-JLR200 | - |
dc.identifier | issn: 0022-2275 | - |
dc.identifier.citation | Journal of Lipid Research 50: 2412- 2420 (2009) | - |
dc.identifier.uri | http://hdl.handle.net/10261/121053 | - |
dc.description.abstract | Rumen biohydrogenation of dietary α-linolenic acid gives rise in ruminants to accumulation of fatty acid intermediates, some of which may be transferred into milk. Rumelenic acid [cis-9 trans-11 cis-15 C18:3 (RLnA)] has recently been characterized, but other C18:3 minor isomers are still unknown. The objective of this work was to identify a new isomer of octatridecenoic acid present in milk fat from ewes fed different sources of α-linolenic acid. Structural characterization of this fatty acid was achieved by GC-MS. Analysis of dimethyloxazoline and picolinyl ester derivatives allowed for location of the double bond positions. Covalent adduct chemical ionization tandem mass spectrometry confirmed the positional structure 9-11-15, identical to RLnA, and helped to establish double bond geometry (cis-trans-trans). This new C18:3 isomer could be formed by isomerization of cis-15 bond of RLnA and subsequently converted by hydrogenation to trans-11 trans-15 C18:2, an octadecadienoic acid also detected in this study. Copyright © 2009 by the American Society for Biochemistry and Molecular Biology, Inc. | - |
dc.publisher | American Society for Biochemistry and Molecular Biology | - |
dc.rights | closedAccess | - |
dc.title | Characterization of cis-9 trans-11 trans-15 C18:3 in milk fat by GC and covalent adduct chemical ionization tandem MS | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1194/jlr.M800662-JLR200 | - |
dc.date.updated | 2015-08-10T09:14:20Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.identifier.pmid | 19542528 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
item.openairetype | artículo | - |
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